Collapsible stove



June 7, 1938. w. F. SIVEY COLLAPSIBLE STOVE Filed April 15. 1937 2Sheets-Sheet l INV EN TOR. W E Siva P Q,

A TTO RNEY June 7, 1938. w. F. SlVEY COLLAPSIBLE STOVE Filed April 15,1937 2 Sheets-Sheet 2 Fig.5

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INVENTOR V W I. Sivey ATTORNEY Patented June 7, 1938 UNITED STATESPATENT OFFICE 2,119,799 I COLLAPSIBLE STOVE William F. Sivey, Tecumseh,Nebr. Application April 15, 1937, Serial No. 137,060

My present invention-relates to portable stoves which are adapted foruse in camping, the primary object being the provision of a portablestove in which the fire hazard is completely eliminated.

Another object of the invention is the provision of a stove which may becompletely assembled or disassembled, the assembled stove having thevarious parts interfltting so tightly that no leakage of flame or ofsparks is possible.

Another of my objects is the provision of a portable stove of assembledconstruction so that no undesired drafts may occur in the stove.

Another object which I have in view is the provision of a stove whichmay be collapsed into the minimum of space, the stove being selfcontained with the top and bottom enclosing all other parts of thestove.

Another of my objects is the provision of a collapsible stove havingattached legs of novel construction, the legs being insertible into theflue which is adapted to be placed with the other parts of the stove inthe space enclosed between the top and bottom of the stove.

Having in view these objects and others which will be pointed out in thefollowing description, I will now refer to the drawings, in which Figure1 is a view in isometric projection of the stove in collapsed form andready for transportation or storage.

Figure 2 is a view in isometric projection-showing all of the parts ofthe stove in the semiassembled relationship.

Figure 3 is a view of the stove in median vertical section.

Figure 4 is a view of the stove partly in plan and partly in horizontalsection with parts of the stove broken away.

Figure 5 is a view in section on the line 5-5 of Figure 3.

Figure 6 is a view in front elevation of my draft regulating slides.

The bottom ill with an upstanding flange ll forms a rectangular traywhich is open at the top only. The top l2 with a depending flange hasthe same length and breadth as the bottom Ill. The bottom 10 and the topl2 are adapted to be positioned as shown in Figure 1 to constitute acontainer in the form of a suitcase but enclosing all other parts of thestove as well as the poker and other accessories of the stove. Theavailable space within the container is not only suflicient for holdingthe stove parts and accessories but to hold the oven, of which thedetails are described in my co-pending ap- 'plication for Collapsibleoven, Serial Number lies in the plane of the rear flanges I! with theoffset edges l9 overlapping the flanges H. The front do'or frame 20 hassimilar offset flanges 2i, 15 having the same relation to the forwardflanges II as the offset edges l9 have to the rear flanges I l. Theupper edge portions of the rear end and side walls and the front doorframe seat in identical manner against the inner surfaces of the 20flanges l3.

For clamping the side and end walls to the top and bottom I providestraps 22 on all of these parts, the straps being vertical and spotwelded or otherwise secured to the respective 25 parts. The end portionsof these straps are offset a distance substantially equal to thethickness of the flanges II and I3. Owing to the resilience and bindingaction of these straps on the flanges, the parts are firmly butreleasably 30 secured together leaving no open spaces for the leakage ofair and flame.

As thus far described the device is a collapsible box which may functionas a container or receptable for any desired purpose. For my. pur- 35poses the top, bottom and front are modified to adapt the box for use asa stove. The door 23 is hinged at 24 to one of the straps 22 of the doorframe 20. In its closed position the door 23 is in the plane of the twostraps 22 of the 4 door frame 20 with its upper and lower edge portionspressed against the body of the door frame. The door is also providedwith a spring pressed latch 25 having a detachable handle 26.

For the control of the draft, the forward flange 45 II is provided withtwo apertures having slide closures 28 for either closing the aperturesentirely or for partially or wholly opening the apertures for theperfect control of the inflow of air. The inlet air passages extendthrough the door frame 20, the door frame being provided with apertures,not shown, registering with the apertures of the flange II. The top l2in its rear portion has a screw threaded aperture I for receiving adetachable collar 29 which con- 6 30. The length of the flue will dependto a large extent on the particular use. When the stove is used in atent or cabin, the flue may be extended to and through a hole in theroof. If the stove is too low for convenience or if the soil is coveredwith inflammable material, the stove must be elevated and for thispurpose I provide four angle iron legs II. Secured to the flanges II andII at the corners thereof are straps 32 which are spaced intermediatetheir ends from the flanges. or out of the passageways between thestraps 32 and the flanges, thus making simple the assembly ordisassembly. Pins 33 limit the sliding movement of the legs to thusmaintain the stove at a fixed height. Chains connecting the pins to thelegs prevent the misplacement and loss of the pins. Each leg is providedwith a plurality of apertures for receiving the pins both forpositioning the stove at a most convenient height and for leveling thestove when the camp site is on uneven ground surface.

My stove is made portable for convenience in transportation and use.Although portability is essential, as before stated my primary object isto provide a stove which has no fire hazard. It is true that theordinary kitchen stove or range can be used in camp with little of nodanger of starting forest or prairie fires. Such stoves are, however,not portable and they are therefore useless for tourists and especiallyfor tourists who frequently make and break camp. Even despite theserious drawbacks, such stoves are sometimes used on dude ranches, theheavy cast iron stove being laboriously transported to the camp site. Mystove not only eliminates the serious difiiculty of transportation butit is equally effective for confining the fire within the stove. This isof The angle iron legs 3| are slidable into 2,119,799 ducts the productsof combustion through a 'flue I great importance especially in forestcamps and more particularly in those camp sites in which the soil iscovered by a heavy layer of moldy vegetable material. Such material whendry or nearly so, will sometimes hold the spark for several days at atime and then result in a disastrous forest fire. Generally the onlyfire extinguishers available in camps are sand and water, but both ofthese are often of insufficient quantity to make certain that the dangerhas been entirely eliminated. Sand and water are moreover ratherineffective in a moldy soil covering which permits the almost indefiniteflowing of a spark until suddenly the fire develops in seriousproportion.

Having thus described my invention in such full, clear, and exact termsthat its construction and utility will be readily understood by othersskilledin the art to which it pertains, what I claim as new and desireto secure by Letters Patent of the United States is:

A collapsible stove having tray like top and bottom with opposingflanges, side walls having lateral inturned flanges and adapted to seatagainst the opposing flanges of said top and bottom, a rear wall and afront door frame each having offset side portions overlappping thelateral flanges of said side walls with the major portions of the upperand lower edges of said rear wall and front door frame seated againstthe inner surfaces of the flanges of said top and bottom, and resilientstraps vertically secured to said side walls and said rear walls andsaid front door frame, the upper and lower portions of said straps beingoutwardly offset whereby the flanges of said top and bottom arereleasably clamped between said straps and said side walls and said rearwall and said front door frame.

WILLIAM F. SIVEY.

